摘要
以黄浦江上游水源地为例,利用1999年上海水资源普查数据及2000年初成像的上海市1∶50 000彩红外航空像片,采用G IS空间分析技术、灰色关联分析技术,划分土地利用样带,设计水质改善指数,探讨平原河网地区水环境质量对土地利用结构的响应,以及水源水质对土地利用变化驱动力的响应。结果表明,黄浦江上游水环境质量受到土地利用格局及上游来水的综合影响,各样带工业用地比例与水质改善指数呈极显著负相关(P<0.01),松浦大桥取水口水质与上游来水水质以及水源地当地的工业发展、人口密度等土地利用变化驱动力具有很好的关联性。建议在开展平原河网地区水源保护工作中,应在关注上游来水状况的同时,从土地利用及其社会经济驱动两方面控制水文敏感区域土地开发强度,构筑水源地圈层土地利用格局。
Based on the water resources survey of Shanghai in 1999 and the 1 ： 50 000 color infrared aerial photos obtained in early 2000, a case study of the upper Huangpu River was carried out. The exponential method, pair-sample t test, and remote sensing analysis are used to analyze water environmental characteristics and land use pattern in the river network plain. In order to explore response of water quality in the waterbead region to the changes in land use and its driving force, five land use patterns are selected and a new type of exponential is designed. Results show that the water environment of the upper Huangpu River is affected integratedly by land use and flow from the upper reaches; river water quality is negatively related to proportion of industrial land in the sample zones; and the water quality at the water catchment near the Songpu Bridge is closely related to the water quality of the flow coming down from the upper streams, and driving forces of change in land use, such as development of the industry and population density in the waterbead region. It is suggested that attention be given to quality of incoming water from the upper reaches while strict measures be taken to control the intensity of land exploitation in hydraulically sensitive areas and build up a ring-structure land use pattern in the waterhead region by means of land use and socio-economic driving forces.
出处
《生态与农村环境学报》
CAS
CSCD
北大核心
2006年第4期14-19,共6页
Journal of Ecology and Rural Environment
基金
上海市环境保护科技专项基金科技攻关项目(沪环科攻关02-02)
关键词
水环境
土地利用
平原河网
水源地
黄浦江上游
water environment
land use
river network plain
waterhead area
upper Huangpu River
